Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
irrigation schemes » irrigation scheme, irrigation systems
crowd integration » grid integration, rfid integration, beyond integration
furrow irrigation » farm irrigation, crop irrigation, flood irrigation
supply furrow » supply from
supply crowd » supply growth, supply cost, supply from

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply crowd integration theories. ) OR ( supply furrow irrigation schemes. ))~".
• Adding a wildcard symbol may retrieve word variants: (( supply crowd integration theories. ) OR ( supply furrow irrigation schemes. ))*.